Construction Index TV

Fri May 27 2022

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Inside HS2's longest tunnel – first two miles under the Chilterns

Join TBM civil engineering apprentice Caitlyn on a tour through HS2's Chiltern Tunnel to see the latest progress as our two giant tunnel boring machines (TBMs), Florence and Cecilia, create the twin bores.

The two machines have now completed around 20% of their journey under the Chilterns and have arrived at the first of five ventilation shafts that are being constructed along the 10-mile tunnel.

Video uploaded on 08/03/2022 12:00am. Click here to read more about this video

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